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Data Linkage Results
Alcohol-related Crashes, Oklahoma, 2009
http://tdlp.health.ok.gov October 2012
The Oklahoma Traffic Data Linkage Project (TDLP) is a joint effort between the Oklahoma State Department of Health and the Oklahoma Highway Safety Office to link statewide traffic crash and health outcome databases. This report describes the circumstances and outcomes of persons in crashes that involved alcohol.
Inclusion of Cases
Alcohol-related crashes were identified from the traffic crash database as all incidents where alcohol was recorded as involved. Alcohol ‘involvement’ does not imply the blood alcohol concentration (BAC) exceeded the legal limit.
Introduction and Demographics
• Of the 71,218 crashes reported in 2009, there were 4,920 crashes identified as involving alcohol. • 8,498 individuals were involved in alcohol-related crashes – there were 137,370 individuals in crashes that did not document alcohol involvement. Though only accounting for 5.8% of all the individuals reported to the crash database, persons involved in alcohol-related crashes accounted for 748 (23%) of all persons identified as either being hospitalized or died. • 21 to 29 year olds had the highest proportion (8.2%) of alcohol-related crashes, followed by 30 to 39 (7.4%) and 40 to 49 year olds (6.9%). Even for drivers age 16 to 20, underage for drinking, 4.7% were reportedly alcohol related. • Gender and alcohol involvement were recorded for 96% of the individuals. Among females, 4.2% had alcohol involved versus 7.6% of males. Within the alcohol-related group, two-thirds were male. • Overall, 8.8% of the persons in alcohol-related crashes were either hospitalized or died compared to 1.8% of persons in crashes that did not involve alcohol – risk ratio (RR) 4.8 (95% CL 4.4, 5.2). Unadjusted mortality for the alcohol-related group was 2.4% and for the no alcohol group, 0.4% [RR 5.6 (95% CL 4.8, 6.6)].
Circumstances
• 39.5% of persons in alcohol-related crashes were involved in single vehicle crashes as compared to 12.8% of people in crashes that were not alcohol-related. 14.6% of persons in alcohol-related, single vehicle crashes either were hospitalized or died compared to 6.8% hospitalized or died in single vehicle crashes with no alcohol involved. • Among persons involved in multi-vehicle crashes, 5% of persons in alcohol-related crashes were either hospitalized or died versus 1.1% of persons in multi-vehicle crashes not involving alcohol. • Among those in alcohol-related crashes, 21.4% were reportedly not restrained compared to 4% where alcohol was not involved. For the unrestrained in alcohol-related crashes, 27% were either hospitalized or died compared to 3.7% for restrained persons. For unrestrained persons in crashes not involving alcohol, 16% were either hospitalized or died compared to 1% for restrained persons.
0
2
4
6
8
10
12
<16
16-20
21-29
30-39
40-49
50-59
60+
Percent
Age Groups
Proportion Hospitalized/Died by Age and by Age and Alcohol Involvement
Overall
Alcohol
No Alcohol

Data Linkage Results
Alcohol-related Crashes, Oklahoma, 2009
http://tdlp.health.ok.gov October 2012
The Oklahoma Traffic Data Linkage Project (TDLP) is a joint effort between the Oklahoma State Department of Health and the Oklahoma Highway Safety Office to link statewide traffic crash and health outcome databases. This report describes the circumstances and outcomes of persons in crashes that involved alcohol.
Inclusion of Cases
Alcohol-related crashes were identified from the traffic crash database as all incidents where alcohol was recorded as involved. Alcohol ‘involvement’ does not imply the blood alcohol concentration (BAC) exceeded the legal limit.
Introduction and Demographics
• Of the 71,218 crashes reported in 2009, there were 4,920 crashes identified as involving alcohol. • 8,498 individuals were involved in alcohol-related crashes – there were 137,370 individuals in crashes that did not document alcohol involvement. Though only accounting for 5.8% of all the individuals reported to the crash database, persons involved in alcohol-related crashes accounted for 748 (23%) of all persons identified as either being hospitalized or died. • 21 to 29 year olds had the highest proportion (8.2%) of alcohol-related crashes, followed by 30 to 39 (7.4%) and 40 to 49 year olds (6.9%). Even for drivers age 16 to 20, underage for drinking, 4.7% were reportedly alcohol related. • Gender and alcohol involvement were recorded for 96% of the individuals. Among females, 4.2% had alcohol involved versus 7.6% of males. Within the alcohol-related group, two-thirds were male. • Overall, 8.8% of the persons in alcohol-related crashes were either hospitalized or died compared to 1.8% of persons in crashes that did not involve alcohol – risk ratio (RR) 4.8 (95% CL 4.4, 5.2). Unadjusted mortality for the alcohol-related group was 2.4% and for the no alcohol group, 0.4% [RR 5.6 (95% CL 4.8, 6.6)].
Circumstances
• 39.5% of persons in alcohol-related crashes were involved in single vehicle crashes as compared to 12.8% of people in crashes that were not alcohol-related. 14.6% of persons in alcohol-related, single vehicle crashes either were hospitalized or died compared to 6.8% hospitalized or died in single vehicle crashes with no alcohol involved. • Among persons involved in multi-vehicle crashes, 5% of persons in alcohol-related crashes were either hospitalized or died versus 1.1% of persons in multi-vehicle crashes not involving alcohol. • Among those in alcohol-related crashes, 21.4% were reportedly not restrained compared to 4% where alcohol was not involved. For the unrestrained in alcohol-related crashes, 27% were either hospitalized or died compared to 3.7% for restrained persons. For unrestrained persons in crashes not involving alcohol, 16% were either hospitalized or died compared to 1% for restrained persons.
0
2
4
6
8
10
12
<16
16-20
21-29
30-39
40-49
50-59
60+
Percent
Age Groups
Proportion Hospitalized/Died by Age and by Age and Alcohol Involvement
Overall
Alcohol
No Alcohol